First commit

CHANGELOG

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+2014-01-02
+Version 0.1 - Initial release

README.md

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+# shelltemplate #
+I noticed that I usually write the same pieces of code at the start of every
+project. There's the shebang, the copyright header, the program name and the
+version. This is then followed by variables that holds the path to the binaries
+used in the script. After that is the sanity check to check for those binaries.
+Then there is the function for printing the help screen and usage text.
+So I thought it would be a good idea to keep all of this repeating code in
+template. And while at it create a neat function to get all the binaries used
+in the script into variables without having to manually specifiy the path by
+myself. With this template I can simply just specifiy the binaries to be used
+by the script and let a loop run through them and set varibles for them. This
+neat little function uses the 'which' program. This means that there is only
+one hardcoded binary path in the entire script. If the script fails to execute
+'which' I just have to locate it manually and update a single variable. 
+

template.sh

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+#!/bin/bash
+
+################################################################################
+#                                                                              #
+#  Copyright (C) 2014 Jack-Benny Persson <jack-benny@cyberinfo.se>             #
+#                                                                              #
+#   This program is free software; you can redistribute it and/or modify       #
+#   it under the terms of the GNU General Public License as published by       #
+#   the Free Software Foundation; either version 2 of the License, or          #
+#   (at your option) any later version.                                        #
+#                                                                              #
+#   This program is distributed in the hope that it will be useful,            #
+#   but WITHOUT ANY WARRANTY; without even the implied warranty of             #
+#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the              #
+#   GNU General Public License for more details.                               #
+#                                                                              #
+#   You should have received a copy of the GNU General Public License          #
+#   along with this program; if not, write to the Free Software                #
+#   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA  #
+#                                                                              #
+################################################################################
+
+# template
+Version="0.1"
+Author="Jack-Benny Persson (jack-benny@cyberinfo.se)"
+
+# Binaries
+Which="/usr/bin/which"
+
+# Variables
+
+
+### Functions ###
+
+# Print version information
+print_version()
+{
+        $Printf "\n\n$0 - $Version\n"
+}
+
+# Print help information
+print_help()
+{
+        print_version
+        $Printf "$Author\n"
+        $Printf "Shell template\n"
+	/bin/cat <<-EOT
+
+	Options:
+	-h
+	   Print detailed help screen
+	-V
+	   Print version information
+	-v
+	   Verbose output
+	-o
+	   Output file
+	EOT
+}
+
+# Create variables with absolute path to binaries and check
+# if we can execute it (binaries will be avaliable in 
+# variables with first character uppercase, such as Grep)
+Binaries=(sed awk egrep mail printf cat grep mktemp rm tail)
+Count=0
+for i in ${Binaries[@]}; do
+	$Which $i &> /dev/null
+	if [ $? -eq 0 ]; then
+		declare $(echo ${Binaries[$Count]^}=`${Which} $i`)
+		((Count++))
+	else
+		echo "It seems you don't have ${Binaries[$Count]} installed"
+		exit 1
+	fi
+done
+
+# Parse command line options and arguments
+while getopts Vvho: Opt; do
+       	case "$Opt" in
+       	h) print_help
+   	   exit 0
+       	   ;;
+       	V) print_version
+   	   exit 0
+       	   ;;
+       	v) echo "Verbose output"
+       	   exit 0
+       	   ;;
+	o) OutFile=$OPTARG
+   	   ;;
+       	*) short_help
+       	   exit 1
+       	   ;;
+       	esac
+done
+
+
+### Main ###
+
+
+
+exit 0